CLI Reference Guide-R01

Chapter 29 | DHCP Commands
DHCP Relay
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Example
Console#show ipv6 dhcp dynamic-provision
Dynamic Provision via DHCPv6 Status: Disabled
Console#
DHCP Relay
This section describes commands used to configure the switch to relay DHCP
requests from local hosts to a remote DHCP server.
DHCP Relay for IPv4
ip dhcp relay server This command specifies the DHCP server or relay server addresses to use.
Use the no form to clear all addresses.
Syntax
ip dhcp relay server address1 [address2 [address3 ...]]
no ip dhcp relay server
address - IP address of DHCP server. (Range: 1-5 addresses)
Default Setting
None
Command Mode
Interface Configuration (VLAN)
Usage Guidelines
◆ DHCP relay service applies to DHCP client requests received on the specified
VLAN.
◆ This command is used to configure DHCP relay for host devices attached to the
switch. If DHCP relay service is enabled, and this switch sees a DHCP client
Table 157: DHCP Relay Option 82 Commands
Command Function Mode
DHCP Relay for IPv4
ip dhcp relay server Specifies DHCP server or relay server addresses IC
ip dhcp restart relay Enables DHCP relay agent PE
DHCP for IPv6
ipv6 dhcp relay destination Specifies a DHCPv6 server or VLAN to which client requests
are forwarded and enables DHCPv6 relay service
IC
show ipv6 dhcp relay
destination
Displays a DHCPv6 server or VLAN to which client requests
are forwarded
PE